Ground wire hanging and dismounting device and hanging and dismounting method

Abstract

The invention provides a grounding wire hanging and dismounting device and method, and the device comprises a traction support which is provided with an electric hydraulic mechanism, and is connected with a guide rope in a hanging manner; a plurality of groups of jaw clamping jaws are arranged on the upper end surface of the connecting plate, each group of jaw clamping jaws comprises two clamping jaws which are symmetrically arranged, the clamping jaws are hinged to the traction bracket through a linkage mechanism, the clamping jaws are hinged to the connecting plate, and the plurality of groups of jaw clamping jaws are matched to form a jaw clamping position for clamping and holding the overhead line; the lower end face of the connecting plate is connected with the output shaft end of the electric hydraulic mechanism. The clamping component is also provided with an elastic limiting mechanism for limiting the overhead line; the clamping component and the traction support are further connected with a grounding wire, and the grounding wire is connected with a ground end grounding point. The ground wire is thrown and hung to the ground point of the power transmission and distribution line by means of the unmanned aerial vehicle, high-voltage electric shock and high-altitude falling risks of operators are effectively avoided, and the operation safety coefficient and the working efficiency are improved.

Description

Technical Field

[0001] The present application belongs to the technical field of power transmission line maintenance, and in particular relates to a ground wire hanging and removing device and a hanging and removing method. Background Art

[0002] The safety work regulations for power transmission (distribution) lines require that after a power outage, work can only be carried out after the power is tested and the ground wire is hung. After the work is completed, the ground wire must be removed before power can be supplied. In the traditional operation mode of testing the power and sealing the ground wire of the transmission and distribution line, the main method is to manually climb the tower to test the power and remove the ground wire. There are extremely high operational risks during the work:

[0003] First, workers need to carry dozens of kilograms of grounding wires, testers and operating rods during the climbing process. The load is heavy, and they are prone to losing protection during the climbing and transferring process, and are very likely to fall from a height.

[0004] Secondly, since poles, towers, overhead lines, etc. are distributed in the horizontal space, it is not easy for workers to determine whether the lines have electricity. Once they choose the wrong line or hang the ground wire without testing the electricity, it is very likely that a malicious error in hanging the ground wire under power will occur.

[0005] Third, for power-off lines adjacent to energized lines, workers are prone to induced electric shock when hanging or removing grounding wires without the protection of personal safety lines. Summary of the invention

[0006] In view of this, the present application aims to provide a ground wire hanging and removing device and a hanging and removing method to solve at least one of the above problems.

[0007] To achieve the above purpose, the technical solution of this application is implemented as follows:

[0008] In a first aspect, the present application provides a grounding wire hanging and removing device, comprising:

[0009] A traction bracket, on which an electric hydraulic mechanism is installed, and a guide rope is hung on the traction bracket;

[0010] A connecting plate, wherein the upper end surface of the connecting plate is provided with multiple groups of jaws, each group of jaws includes two clamping claws that are symmetrically arranged, the clamping claws are hinged to the traction bracket through a linkage mechanism, the clamping claws are hinged to the connecting plate, and the multiple groups of jaws cooperate to form a jaw clamping position for clamping and holding the overhead line, and the lower end surface of the connecting plate is connected to the output shaft end of the electric hydraulic mechanism;

[0011] The clamping member is also provided with an elastic limiting mechanism for limiting the position of the overhead line;

[0012] The clamping member and the traction bracket are also connected with a grounding wire, and the grounding wire is connected to a ground terminal grounding point.

[0013] Furthermore, the traction bracket includes a traction plate and a mounting bracket arranged at the bottom end of the traction plate, and through holes for hanging the guide rope are opened on both sides of the traction plate;

[0014] A through hole is provided at the central position of the traction plate, the electric hydraulic mechanism is fixed in the mounting bracket via a mounting base arranged at the bottom end, and the output shaft end of the electric hydraulic mechanism passes through the through hole and is connected to the connecting plate.

[0015] Furthermore, a plurality of first hinged parts are provided at the edge of the traction plate, and a plurality of second hinged parts are provided at the edge of the connection plate;

[0016] The clamping member comprises a plurality of groups of jaws, each group of jaws comprises two symmetrically arranged clamping jaws, the clamping jaws are hinged to the first hinged portion via a connecting rod, and the clamping jaws are hinged to the second hinged portion.

[0017] Furthermore, each of the clamping claws comprises two clamping plates, a gap is reserved between the two clamping plates, and the bottom ends of the two clamping plates are respectively hinged to the connecting rod and the second hinged portion;

[0018] The clamping plate is an arc-shaped structure, and an ear portion is extended outwardly from the clamping plate. A through hole is opened on the ear portion, and a grounding wire is hung on the through hole.

[0019] Furthermore, a plug-in hole is provided in the middle of the clamping plate;

[0020] The elastic limiting mechanism comprises a double-hook tension spring and a limiting pin, the limiting pin is plugged into the plug-in hole, and the double-hook tension spring is hung on the clamping plates on both sides.

[0021] Furthermore, a rubber gasket is installed in the gap reserved between the two clamping plates.

[0022] Furthermore, a plurality of supporting plates are arranged on the upper end surface of the connecting plate, and the plurality of supporting plates are located in the vacant area between the two groups of jaws, and an arc opening matching the overhead cable is reserved on the upper end surface of the supporting plate.

[0023] In a second aspect, based on the same inventive concept, the present application further provides a grounding wire hanging and removing method, using a grounding wire hanging and removing device as described in the first aspect, comprising:

[0024] In the preparation stage, one end of the guide rope is fixed to the traction bracket, and the other end is fixed with a load-bearing block, and the load-bearing block is placed on the drone. At the same time, one end of the grounding wire is connected to the clamping member and the traction bracket, and the other end is connected to the grounding point on the ground;

[0025] During the take-off and climbing phase, the drone is released, and the hanging and dismantling device is carried across the overhead line. The drone is controlled to release the load-bearing block, so that the load-bearing block drives the guide rope to descend to the ground on the other side of the overhead line by its own gravity;

[0026] During the hooking operation, the guide rope is pulled to pull the hooking and dismantling device to the conductor grounding position, and the ground personnel remotely control the action of the electric hydraulic mechanism to control the clamping claw to lock the overhead line to complete the hooking operation of the grounding wire;

[0027] During the demolition operation, ground personnel remotely control the electric hydraulic mechanism to open the clamping claws, which separate from the overhead lines. The drone carries the load-bearing blocks and releases them to the ground, removing the grounding point and grounding terminal to complete the demolition of the grounding wire.

[0028] Compared with the prior art, the ground wire hanging and removing device and hanging and removing method described in the present application have the following beneficial effects:

[0029] The present application describes a grounding wire hanging and removing device and hanging and removing method. The device uses a drone to drop and hang the grounding wire to the grounding point of the power transmission and distribution line, effectively avoiding the risk of high-voltage electric shock and falling from height for operators, and improving the safety factor and work efficiency of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0031] Figure 1 This is a schematic diagram of the structure of a ground wire hanging and removing device according to an embodiment of the present application from a first angle;

[0032] Figure 2 This is a schematic diagram of the structure of a ground wire hanging and removing device from a second angle according to an embodiment of the present application;

[0033] Figure 3 This is a front view of a ground wire hanging and removing device according to an embodiment of the present application;

[0034] Figure 4 A side view of a ground wire hanging and removing device according to an embodiment of the present application

[0035] Figure 5 This is a flow chart of a ground wire hanging and removing method described in an embodiment of the present application.

[0036] Description of reference numerals:

[0037] 1-traction bracket; 11-traction plate; 12-mounting bracket; 13-through hole; 14-first hinge part; 2-connecting plate; 21-second hinge part; 22-supporting plate; 3-connecting rod; 4-clamping claw; 41-clamping plate; 42-through hole; 43-rubber gasket; 5-elastic limiting mechanism; 51-double hook tension spring; 52-limiting pin; 6-electric hydraulic mechanism. DETAILED DESCRIPTION

[0038] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0039] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0040] See also Figures 1 to 4 As shown, this embodiment provides a ground wire hanging and removing device, including:

[0041] A traction bracket 1, on which an electric hydraulic mechanism is installed, and a guide rope is hung on the traction bracket 1;

[0042] A connecting plate 2, wherein the upper end surface of the connecting plate 2 is provided with a plurality of groups of jaws, each group of jaws includes two clamping claws which are symmetrically arranged, the clamping claws are hinged to the traction bracket 1 through a linkage mechanism, the clamping claws are hinged to the connecting plate 2, and the plurality of groups of jaws cooperate to form a clamping position for clamping and holding the overhead line, and the lower end surface of the connecting plate 2 is connected to the output shaft end of the electric hydraulic mechanism 6;

[0043] The clamping member is also provided with an elastic limiting mechanism 5 for limiting the position of the overhead line;

[0044] The clamping member and the traction bracket 1 are also connected with a grounding wire, and the grounding wire is connected to a grounding point at the ground end.

[0045] Specifically, in this embodiment, the device is currently suitable for the electrical testing and grounding work of single-line transmission and distribution lines arranged up and down with a length of less than 35 meters. According to the actual on-site trial results of the three-item electrical testing and grounding work of 110kV lines, the operation time was shortened from 60 minutes to 40 minutes, improving the work efficiency by about 33%.

[0046] The device uses a drone to throw a traction rope, manually tow the installation and disassembly device to the conductor grounding position, and ground personnel use remote control to lock the mechanical structure of the hanging and disassembly device with the conductor grounding position to conduct the grounding circuit. The entire process does not require personnel to climb the pole tower.

[0047] Furthermore, in this embodiment, a hooking point for hooking the guide rope is provided on the traction bracket 1, and an electric hydraulic mechanism is installed on the traction bracket 1. The ground personnel remotely control the action of the electric hydraulic mechanism to control the up and down movement of the connecting plate 2 connected to the output shaft end of the electric hydraulic mechanism, thereby realizing the opening and closing of the clamping member;

[0048] This embodiment takes two groups of jaws as an example for explanation as follows. The two groups of jaws are located at the edge positions on both sides of the connecting plate 2. Each group of jaws includes two rotatable clamping jaws. The bottom ends of the clamping jaws are hinged to the connecting plate 2 and are hinged to the traction plate 11 through the connecting rod 3. The two clamping jaws are driven by a motor to perform closing and releasing actions, thereby realizing the clamping and loosening of the wire.

[0049] At the same time, a grounding wire is hung on the clamping member and the traction bracket 1, and the other end of the grounding wire is connected to the grounding point at the ground end. The clamping member is used to clamp or release the overhead line, so that the hanging and disassembling device can clamp the wire to complete grounding or release the contact grounding.

[0050] In addition, in this embodiment, an elastic limiting mechanism 5 is provided on the clamping member, and the elasticity of the elastic limiting mechanism 5 can be used to adapt to power transmission wires with different wire diameters, so as to improve the flexible adaptability of the device.

[0051] The grounding wire hanging and removing device described in this embodiment uses a drone to drop and hang the grounding wire to the grounding point of the power transmission and distribution line, effectively avoiding the risks of high-voltage electric shock and falling from heights for operators, and improving the safety factor and work efficiency of the operation.

[0052] In some embodiments, Figure 1 and Figure 2 As shown, the traction bracket 1 includes a traction plate 11 and a mounting bracket 12 arranged at the bottom end of the traction plate 11. Through holes 13 for hanging guide ropes are opened on both sides of the traction plate 11.

[0053] A through hole is provided at the center of the traction plate 11 , and the electric hydraulic mechanism is fixed in the mounting bracket 12 via a mounting base provided at the bottom end, and the output shaft end of the electric hydraulic mechanism passes through the through hole and is connected to the connecting plate 2 .

[0054] Specifically, in this embodiment, holes are punched on both sides of the traction plate 11 to provide fixing positions for connecting the guide ropes. The drone drives the device to rise and fall by pulling the guide ropes, thereby completing the hanging and dismantling of the overhead lines.

[0055] The electric hydraulic mechanism adopted in this embodiment is a common motor + hydraulic drive combination. The output shaft of the hydraulic drive motor is extended and retracted to drive the connecting plate 2 to move up and down. The grounding wire electric hydraulic device can be operated at the ground end to lock the wire to complete grounding or release the contact for grounding.

[0056] In some embodiments, a plurality of first hinged portions 14 are disposed at the edge of the traction plate 11, and a plurality of second hinged portions 21 are disposed at the edge of the connection plate 2;

[0057] The clamping member includes a plurality of groups of jaws, each group of jaws includes two symmetrically arranged clamping jaws, the clamping jaws are hinged to the first hinged portion 14 through the connecting rod 3, and the clamping jaws are hinged to the second hinged portion 21;

[0058] Each clamping claw includes two clamping plates 41, a gap is reserved between the two clamping plates 41, and the bottom ends of the two clamping plates 41 are respectively hinged to the connecting rod 3 and the second hinge part 21;

[0059] The clamping plate 41 is an arc-shaped structure, and an ear portion extends outward from the clamping plate 41, a through hole 42 is opened on the ear portion, and a grounding wire is hung on the through hole 42;

[0060] A rubber gasket 43 is also installed in the gap reserved between the two clamping plates 41 .

[0061] Specifically, in this embodiment, the bottom end of the clamping claw is hinged to the second hinge part 21 provided on the connecting plate 2, and is hinged to the first hinge part 14 of the traction plate 11 through the connecting rod 3. The two clamping claws are driven by a motor to perform closing and releasing actions, thereby realizing the clamping and loosening of the wire.

[0062] It should be noted that, in this embodiment, each clamping claw is composed of two arc-shaped clamping plates 41, and a gap is reserved between the two clamping plates 41. On the one hand, it is to realize the connection between the clamping plate 41 and the first hinge part 14 and the connecting rod 3; on the other hand, it is to improve the clamping stability of the jaws.

[0063] At the same time, an ear is extended on the clamping plate 41, and a through hole 42 is opened on the ear. The reserved through hole 42 is used to hang the grounding wire. The grounding wire in this embodiment adopts a single-wire type with a built-in 25m2 copper wire. The copper wire is fixed in the through hole 42. At the same time, it is connected to the ground grounding point together with the grounding wire set on the traction bracket 1, so that after the hanging and disassembly device is hung on the overhead line, the grounding wire is connected to the overhead line to realize the grounding of the overhead line.

[0064] In some embodiments, a plug hole is provided in the middle of the clamping plate 41;

[0065] like Figure 3 As shown, the elastic limiting mechanism 5 includes a double-hook tension spring 51 and a limiting pin 52. The limiting pin 52 is inserted into the insertion hole, and the double-hook tension spring 51 is hung on the clamping plates 41 on both sides.

[0066] Specifically, in the present embodiment, a plug-in hole is provided on each clamping plate 41, in which a limit pin 52 is inserted, and a connecting hole is provided at the end of the rod of the limit pin 52, and the double-hook tension spring 51 is hung in the connecting hole. The purpose of such a setting is to adapt to transmission wires of different wire diameters. Specifically, when the control clamping jaws are opened, the double-hook tension spring 51 is stretched, so that the transmission wire with a smaller diameter will be clamped in the double-hook tension spring 51 and cooperate with the clamping jaws, thereby realizing the fixed clamping of the transmission wire with a smaller diameter, so as to improve the hanging effect of the transmission wire.

[0067] In some embodiments, a plurality of supporting plates 22 are arranged on the upper end surface of the connecting plate 2. The plurality of supporting plates 22 are located in the vacant area between the two sets of jaws. The upper end surface of the supporting plates 22 is reserved with an arc opening matching the overhead cable.

[0068] Specifically, in this embodiment, a plurality of supporting plates 22 are provided on the connecting plate 2 to effectively support the bottom of the transmission line, thereby achieving an auxiliary support effect.

[0069] It should be noted that due to the presence of the double-hook tension spring 51, when the transmission wire presses down the double-hook tension spring 51, the lowest point of the double-hook tension spring 51 and the lowest point of the arc opening on the supporting plate 22 remain on the same horizontal line to improve the clamping effect on the transmission wire.

[0070] Based on the same inventive concept, corresponding to any of the above-mentioned embodiments, Figure 5 As shown, an embodiment of the present application also provides a ground wire hanging and removing method, comprising:

[0071] Step S101, in the preparation phase, one end of the guide rope is fixed to the traction bracket, and the other end is fixed with a load-bearing block, and the load-bearing block is placed on the drone. At the same time, one end of the grounding wire is connected to the clamping member and the traction bracket, and the other end is connected to the ground grounding point.

[0072] Specifically, in this embodiment, with the help of the above-mentioned hanging device, one end of the guide rope is fixed in the through hole of the traction bracket, and the other end is connected to the load-bearing block, and the load-bearing block is placed on the UAV. At the same time, one end of the grounding wire is connected to the clamping plate and the traction bracket, and the other end is connected to the ground grounding point; at the same time, in the preparation stage, after the hydraulic drive mechanism connecting line is connected in place, all connection points are checked to see if they are accurate.

[0073] Step S102, during the take-off and climbing phase, the drone is released, and the drone carries the hanging and dismantling device across the overhead line. The drone is controlled to release the load-bearing block, so that the load-bearing block drives the guide rope to descend to the ground on the other side of the overhead line by its own gravity.

[0074] Specifically, in this embodiment, ground personnel control and release the drone, the drone takes off, pulls the traction rope across the transmission line, and then releases the load-bearing block, so that the load-bearing block drives the guide rope to land on the other side of the transmission line by its own gravity.

[0075] Step S103, during the hanging operation phase, the guide rope is pulled to pull the hanging and removing device to the conductor grounding position, and the ground personnel remotely control the action of the electric hydraulic mechanism to control the clamping claws to lock the overhead line to complete the hanging operation of the grounding wire.

[0076] Specifically, in this embodiment, when performing the hanging operation, the ground operator manually pulls the guide rope to pull the hanging and removing device to the grounding position of the transmission wire. At this time, the clamping jaws are in an open state. Since the opening angle is large, the transmission wire is just located in the opening of the jaws. Then, the drone is released again to observe and confirm whether the transmission wire has accurately entered the jaws, thereby improving the success rate of hanging and removing the grounding wire by the drone.

[0077] After the transmission wire accurately enters the opening of the clamping jaws, the ground personnel remotely control the electric hydraulic mechanism to control the clamping jaws to hold the transmission wire tightly, and the grounding wire hanging operation is completed at this time.

[0078] Step S104, during the dismantling operation, ground personnel remotely control the electric hydraulic mechanism to open the clamping claws, so that the clamping claws are separated from the overhead lines. The drone carries the load-bearing blocks and flies over the overhead lines. The drone carries the hanging and dismantling device and releases it to the ground to dismantle the grounding point and the grounding terminal to complete the dismantling of the grounding wire.

[0079] Specifically, in this embodiment, when implementing the removal operation of the hanging device, the ground personnel again remotely control the action of the electric hydraulic mechanism to control the clamping claw to open, and the clamping claw to detach from the overhead line. The drone carries the load-bearing block to fly over the overhead line, and releases the hanging and removal device to the ground, removes the grounding point and the grounding terminal, so as to complete the removal operation of the grounding wire.

[0080] The hanging method described in this embodiment can complete the hanging and removal of the ground wire through personnel operating the drone and cooperating with ground personnel. The whole process does not require personnel to climb the pole tower. This method can effectively shorten the operation time, effectively avoid the risk of high-voltage electric shock and high-altitude falls for operators, and improve the safety factor and work efficiency of the operation.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

[0082] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

Claims

1. A grounding wire hanging and removing device, characterized in that: include: A traction bracket, on which an electric hydraulic mechanism is installed, and a guide rope is hung on the traction bracket; A connecting plate, wherein the upper end surface of the connecting plate is provided with multiple groups of jaws, each group of jaws includes two clamping claws that are symmetrically arranged, the clamping claws are hinged to the traction bracket through a linkage mechanism, the clamping claws are hinged to the connecting plate, and the multiple groups of jaws cooperate to form a jaw clamping position for clamping and holding the overhead line, and the lower end surface of the connecting plate is connected to the output shaft end of the electric hydraulic mechanism; The clamping member is also provided with an elastic limiting mechanism for limiting the position of the overhead line; The clamping member and the traction bracket are also connected with a grounding wire, and the grounding wire is connected to a ground terminal grounding point.

2. The device according to claim 1, characterized in that: The traction bracket includes a traction plate and a mounting bracket arranged at the bottom end of the traction plate, and through holes for hanging the guide rope are opened on both sides of the traction plate; A through hole is provided at the central position of the traction plate, the electric hydraulic mechanism is fixed in the mounting bracket via a mounting base arranged at the bottom end, and the output shaft end of the electric hydraulic mechanism passes through the through hole and is connected to the connecting plate.

3. The device according to claim 2, characterized in that: The edge of the traction plate is provided with a plurality of first hinged parts, and the edge of the connection plate is provided with a plurality of second hinged parts; The clamping claw is hinged to the first hinge part through a connecting rod, and the clamping claw is hinged to the second hinge part.

4. The device according to claim 3, characterized in that: Each of the clamping claws comprises two clamping plates, a gap is reserved between the two clamping plates, and the bottom ends of the two clamping plates are respectively hinged to the connecting rod and the second hinged portion; The clamping plate is an arc-shaped structure, and an ear portion is extended outwardly from the clamping plate. A through hole is opened on the ear portion, and a grounding wire is hung on the through hole.

5. The device according to claim 4, characterized in that: A plug-in hole is provided in the middle of the clamping plate; The elastic limiting mechanism comprises a double-hook tension spring and a limiting pin, the limiting pin is plugged into the plug-in hole, and the double-hook tension spring is hung on the clamping plates on both sides.

6. The device according to claim 4, characterized in that: A rubber gasket is also installed in the gap reserved between the two clamping plates.

7. The device according to claim 3, characterized in that: The upper end surface of the connecting plate is provided with a plurality of supporting plates, and the plurality of supporting plates are located in the vacant area between the two groups of jaws, and the upper end surface of the supporting plate is reserved with an arc opening matching the overhead cable.

8. A method for hanging and removing a grounding wire, using a grounding wire hanging and removing device according to any one of claims 1 to 7, characterized in that: include: In the preparation stage, one end of the guide rope is fixed to the traction bracket, and the other end is fixed with a load-bearing block, and the load-bearing block is placed on the drone. At the same time, one end of the grounding wire is connected to the clamping member and the traction bracket, and the other end is connected to the grounding point on the ground; During the take-off and climbing phase, the drone is released, and the drone carries the hanging and dismantling device across the overhead line. The drone is controlled to throw the load-bearing block, so that the load-bearing block drives the guide rope to descend to the ground on the other side of the overhead line by its own gravity; During the hooking operation, the guide rope is pulled to pull the hooking and dismantling device to the conductor grounding position, and the ground personnel remotely control the action of the electric hydraulic mechanism to control the clamping claw to lock the overhead line to complete the hooking operation of the grounding wire; During the demolition operation, ground personnel remotely control the electric hydraulic mechanism to open the clamping claws, which separate from the overhead lines. The drone carries the load-bearing blocks and releases them to the ground, removing the grounding point and grounding terminal to complete the demolition of the grounding wire.

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